Stone-crusher



(No Model.)

T. A. BLAKE.

' STONE ORUSHBR. I No. 308,236. v Patented Nov. 18 1884.

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THEODORE A. BLAKE, OF NEWV HAVEN, CONNECTICUT.

STONE-CRUSHER.

SPECIFICATIQN forming part of Letters Patent No. 308,236, dated November 18, 1884.

Application filed May 5, 1884. (No model.)

To all whom it may concern.-

I jaw of one series and the face of the next jaw Be it known that I, THEODORE A. BLAKE, of of the other series form a convergent mouth,

New Haven, in the county of New Haven and State of Connecticut, have invented new Improvements in Sto11e-Orushers;and1 do hereby declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1, a top or plan view; in Fig. 2, a

longitudinal section of the same; and in Figs.

3 and 4, modifications.

This invention relates to an improvement in that class of stone-crushers in which a series of crushing-jaws are arranged, and which are now known as multiple-jaw crnshers.

In a patent granted to me April 15, 1884, No. 296,914, I show an improvement in this class of stone-crushers. A series of jaws is arranged, all of which are movable toward and from each other, and so that the movement of one jaw communicates movement to the next jaw through the material introduced between them, and all the jaws, in crushing, move in the same direction.

The object of my present invention is the construction of a crusher composed of a series of jaws in which the alternate jaws are independent of the intermediate jaws, whereby the crushing action of the several jaws of the series is not dependent upon the material being crushed; and the invention consists in two series of jaws, the jaws of one series alternating with those of the other series, the movement of one series being independent of the other series, as more fully hereinafter described.

A, B, O, and D represent the jaws of one series. These are connected as in a frame, as seen in Fig. 1, so that all are firmly united and immovable as to each other. The adja cent faces of these jaws are inclined upward and away from each other, so as to form a mouth wider at the top than at the bottom. E, F, and G are intermediate jaws, of like shape with the jaws B O-that is, doublefacedand in like manner inclined. These jaws are constructed or applied to a frame, H, so as to stand intermediate between the jaws A B G D, .as seen in Fig. 2. The face of one substantially the same as in the well-known Blake crusher. Now, ifa reciprocating movement be imparted to one of the series, that movement in one direction will crush against one face of the intermediate jaws, so that, of the material introduced between these jaws, the portion in one month will be crushed in onedircction of movement, and that in the next month will be crushed in the movement in the opposite direction. As here represented, I make the first series, A B O D, stationary, and the frame H, carrying the series E F G, movable. To this movable series I impart reciprocating movementsay by a toggle, I, at one end. and a toggle, J, at the other endoperated by eccentrics on the drivingshafts in the usual manner of communicating reciprocating movement to stone-crusher j aws. The one toggle closing as the other opens, and vice versa, will give a forced movement to the series E F G, first in one direction and then in the opposite direction, and so that of the material introduced into the months between the jaws of the series the portion in the months a b 0 will be crushed as thejaws E F G move in one direction, and then on the return the material in the mouths efg will be in like manner crushed, the material crushed passing down, as in the Blake crusher.

Instead of making one of the series stationary and the other movable, both may be made movable, as seen in Fig. 3, a toggle being applied alike at each end of both series; and these may be operated from a single eccentric at the respective ends of the machine,'as seen in that figure, the movements of the two being in opposite directions.

Instead of making the two series in a direct line, as thus far described, they may be in a circle, as seen in Fig. 4, the series being composed, say, of two plates or frames, one carrying thejaws A B O, &c., the other the intermediate jaws, E'F G, &c., one of the series being stationary and the other movable, or both made movable. This movement may be made as represented in Fig. 4, the two plates or frames being arranged concentric with each other, and so as to turn upon a center or bearing, h, an arm, L, extending from one plate,

and an arm, M, from the other plate, with a toggle, J, between, and upon the opposite side like arms L M, with a toggle, I, between. The one toggle opening as the other closes will impart an oscillatory movement to each plate, or, if one be stationary, will impart an oscillatory movement to the other plate, producing the same reciprocating crushing movement between the faces of the jaws as in the first illustration.

By making the two series ofjaws independent of each other, and also independent of the material between. them as to crushing movement, the crushing will be performed in each month regardless of the others, and it per chance there be no material in one month, the crushing will go on the same in the others.

THEODORE A. BLAKE.

W'itnesses:

JOHN E. EARLE, J os. O. EARLE. 

